Display screen or a portion thereof with a contact bowl graphical user interface



The FIGURE is a front view of a display screen or a portion thereof with a contact bowl graphical user interface as shown and described.

The outermost broken line represents a display screen or a portion thereof and forms no part of the claimed design. The remaining broken lines illustrate portions of the graphical user interface which form no part of the claimed design. 

CLAIM The ornamental design for a display screen or a portion thereof with a contact bowl graphical user interface, as shown and described. 